Notching-guide for tubes, etc.



June 27, 1933. J. S. COE

NOTCHING GUIDE FOR TUBES, ETC

Filed Feb. 17, 1952 Patented June 27, 1933 Nara-ST PATENT OFFICE JOHN s. 00E, 0]? WATERBURY, CONNECTICUT, AssIGNon'm THE CHASE COMPANIES,

INCORPORATED, oF'wA-TERBURY, CONNECTICUT, A CORPORATION oincHINe-eannia Foe TUBES, are.

Application filed *February 17, 1932, Serial No. 593,536.

This invention relates to improvement in notchingsguides and particularly to notching-guides for facilitating theformation of ports or openings in the side-walls of watertubing, etc.,' in order to provide for the at- The main object of my present invention is to provide slmple, convenlent and reliable means for guiding a cutting-tool, such as a o file or saw, in forming a port or opening in I theperiphery of a tube.

WVith the a'boveand other objects-in view,

as will appear from thefollowing, my invention consists in ainotching-guide having certain features of construction andcombinations and arrangements of parts as will be hereinafter described and particularly: re cited in the claims. In the accompanying drawing:

Fig.1 is a view in side elevation of one form'wliich a notching-guide constructed in accordance with my invention may assume and shown as applied to a tube;

Fig; 2 is an end View thereof; Fig. 3 is'a top or plan "viewthereof; Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 1;

Fig. 5 is a'correspondingview but showing the clamping-bolt released to permit the re moval of the guide;

Fig. 6 is a central, longitudinal, sectional view taken on the line 6-6 of- Fig.3.;

' 'Fig; 7'is a perspective view of the bodyn'i'emberdetached; and

Fig. '8 is a perspective view of'the clamping-bolt detached.

In the embodiment of my invention herein chosen for illustration, I employ an inverted Ll-shaped body-member lOpreferably formed of hardened sheet-steel. The central reach of the said body-member is transversely curved, as shown, to substantially fit the periphery of a tube, such as 11, and terminates in two depending clamping-arms '12 and 13 (preferably yielding), bent outwardly at their lower ends to respectively provide camsurfaces14 and '15 sloping downwardly and away from the central reach of the body.

Extending transversely across the central reach ofthe b'ody' loin such manner as to] the purpose as will hereinafter appear.

its wing-nut 24 with the cam-surface 15, wlth the result that the said clamping-bolt intersect above its upper and lower faces, I form a guide notch 16, which may assume avariety of forms, such as the semicircular form shown, and provides for the guidance of a saw, file, or. other cutting-tool, in forming a lateral port or opening 17 in the tube 11.

adjacent its polygonal neck-portion 19 with a head 21 having a convexunderface22 for coaction with the cam-surface 14 of the said arm 12, as will hereinafter appear. The threaded outerend of the clamping-13011120 projects through a downwardly-opening notch 23 formed in the lower edge of the arm 13 of the bOdy-member'lO and intersecting the cam-surface 15 thereof. ,Mounted upon the threaded end of the bolt 20 is a wing-nut 24 adapted to be screwed against the said cam-surface 15 of'the arm 13 for By loosening the wing-nut 24, the clamps in'g-bolt 20 may beslipped out of the open lower end ofthe notch 23 in the. arm 13 and swung downward through the slot 18 intop'the position in which it is shownin Fig. 5-, so that the guide may be readily applied or removed from a tube. When, however, the clamping-bolt is in place, as shown particularly well in Fig. 4, andthe wing-nut is screwed tightly upon the clamping-bolt 20, the said clamping-bolt will be caused to ride laterally upward by the coaction of the convex under-face of its head. 21 with the cam-surface 14 and also by the coaction of 20 will be forcibly engaged laterally with the under-face of the tube 11 and thus draw down upon thebody 10 to firmly seat the under-face thereof upon the upper surface of the said tube. i v v I When the under-face of the body-member 10 is firmly'seated upon the periphery of a tube, as above described, the transverse guidenotch 16' will serve to limit the actionsof 1 a cutting-tool such as a file or saw, and thus definitely define the character of a lateral port such as 17, as regards size, shape, location, etc.

l/Vhile I prefer to curve each of the fingers l2 and 13 so as to provide acam-surface on each, it is obvious that the novel elfect of firmly seating the body of the guide upon wing-nut 24:-

lit will be understood by those skilled in the artthat my invention may assume varied physical forms without departing from my inventive'concept, and I, therefore, do not limit myself tothe specific embodiment herei in chosen for illustration, but only as indicated in the appended claims.

I claim:

1. A notching-guide including a substantially U-shaped body having a cross-reach and two complementary arms spaced from each other to perlnit the lateral application of the body to a tube, and formed with a transverse guide-notch; and means for clamping said body to the tube, including a member extending between the bearing upon said arms, and means on said member and on cooperating one of said arms serving to move said member and said cross-reach into engagement with said tubeupon the exertion of clamping I 7 pressure by said member.

2. A notching-guide including a substantially U-shaped body havmg a cross-reach and two complementary arms spaced from each other to permit the lateral'application of the body to a tube, and formed with a transverse guide-notch; and means for clamping said body to the tube, including a member extending between and bearing upon said arms, and cooperating means including a head on said member and a cam surface on one of said arms serving to move said member and said cross-reach into engagement with said tube upon the exertion of clamping pressure by said member.

3. A notching-guide for tubes and the like,

1 including a substantially ll-shaped body provided with a transverse guide-notch and having a cross-reach and two complementary arms, one of which latter is formed with a slot and the other of which is provided with a notch opening through its edge; and clamping-means including a member extendin bef 'tween the two complementary arms of the saidv body and throughthe notch and'slot formed respectively thereinand adapted for movement longitudinally of: said notch and such as the bolt and and two complementary arms, and provided i with a transverse guidenotch and having one of its arms provided with a cam-surface slop ing away from its complementary arm; and clamping-means including a member extending between the two complementary arms of the said body, said member provided with means coacting with the said camsurface for being laterally engaged with the periphery of a tube to firmly seat the said body thereon.

5. A notching-guide including a substantially U-shaped body having a cross-reach and two integral complementary arms, and provided with a transverse guide-notch and having one of its side-arms provided with a cam-surface sloping away from its comple mentary side-arm; and clampingmeans including a member extending between the two integral complementary armsof the said acting with the saidcam-surface for being laterally engaged with the periphery of a tube to firmly seat the said body thereon.

body, said member provided with means 00- 6. A notching-guide including a substantially U-shape d body'liaving a cross-reachand two yieldmg complementary arms, and

provided with a transverse guide-notch, and

having one of its arms provided with a camsurface sloping away from its complementary arm; and clamping-means including a i-- ber extending between the two yielding arms of the said body, said member provided with means coacting with the said cam-surface for simultaneously drawing the two said yielding arms together and being laterally engaged w1th the periphery of the tube to firmly seat the said body thereon.

7. A notching-guide including a substantially U-shaped body having a cross-reach and two complementary arms, and provided with a transverse guide-notch'and having one of its arms provided with a cam-surface sloping away from its complementary sidearm; and clamping-means including a mem; ber extending between the two complemen 8. A no'tching-guide including a substan- I tially U-shaped body provided with a transverse guide-notch and two complementary. arms, one of which latter is provided witha cam-surface sloping away from its complementary arm, and having a transverse passage extending through the said cam-surface, the other of the said armsvbein'g provided with a notch opening through its edge, and

clamping-means including a member extending between the two complementary arms of the said body and through the slot in one and the notch in the other thereof, said member providedwith means coacting with the said cam-surface for being laterally engaged with the periphery of 'a tube to firmly seat the said body thereon.

9. A notching-guide including a substantially U-shapedbody provided with a transverse' guide-notch and two complementary arms, each of which is provided with a camsurface sloping away from the complementary arm; and clamping-means extending be 10, A notching-guide including a substantially U-shaped body provided with atransverse guide-notch and having two complementary arms each having a portion sloping away from the otherarm and each having "in its sloping portion a transverse passage,

one of which is in the form of a circumscribed passage and the vother in the form of arnotchopeningthrough the edge of the arm in which it isformed; and clamping-means extended through the respective passages of the said arms in position to be forced by the said sloping portions thereof into lateral vengagement with the periphery of a tube to firmly seat the said body thereon.

In testimony whereof, I have signed this specification.

JOHN s, ooE; 

